Fire official: Border Patrol agent shot to death

CAMPO, Calif. 
A state fire official says a Border Patrol agent has been shot to death in the Campo area in San Diego County.

California Department of Forestry and Fire Protection Battalion Chief Nick Schuler says the agent was pronounced dead at the scene at about 9:15 p.m. Thursday near the US-Mexico border on Shockey Truck Trail.

It's not known if the agent was on duty at the time.

FBI Special Agent Darrell Foxworth says the FBI is investigating, along with the San Diego County Sheriff's Department and Border Patrol.